 function s1_hello(){
  echo "hello,world!";
}

 function s2_tell_who_i_am(){
     echo   "$(whoami)"
}
#!/bin/bash
 function s3_which_distro_do_i_use(){
    cat /etc/*-release | grep "NAME"
}
#!/bin/bash
 function s4_view_my_cpu_arch(){
 uname -m
}
#!/bin/bash
s5_show_first_scsi_disk_size(){
    lsblk -l | \grep disk | \grep '^sda' | \awk '{print $4}' |tr -d 'G'
}
#!/bin/bash
#!/bin/bash
function s6_show_main_memory_size_in_megabytes(){
   free -m |grep "Mem:" |awk '{print $2}'
}

s1_hello
s2_tell_who_i_am
s3_which_distro_do_i_use
s4_view_my_cpu_arch
s5_show_first_scsi_disk_size
s6_show_main_memory_size_in_megabytes
